EP1607487A4 - GRAIN-ORIENTED MAGNETIC STEEL STRIP WITH EXCELLENT MAGNETIC PROPERTIES, AND PROCESS FOR PRODUCING THE SAME - Google Patents

GRAIN-ORIENTED MAGNETIC STEEL STRIP WITH EXCELLENT MAGNETIC PROPERTIES, AND PROCESS FOR PRODUCING THE SAME

Info

Publication number
EP1607487A4
EP1607487A4 EP04717811A EP04717811A EP1607487A4 EP 1607487 A4 EP1607487 A4 EP 1607487A4 EP 04717811 A EP04717811 A EP 04717811A EP 04717811 A EP04717811 A EP 04717811A EP 1607487 A4 EP1607487 A4 EP 1607487A4
Authority
EP
European Patent Office
Prior art keywords
grain
producing
same
steel strip
magnetic properties
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04717811A
Other languages
German (de)
French (fr)
Other versions
EP1607487A1 (en
EP1607487B1 (en
Inventor
Tatsuhiko Sakai
Hideyuki Hamamura
Naoya Hamada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=33027875&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1607487(A4) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of EP1607487A1 publication Critical patent/EP1607487A1/en
Publication of EP1607487A4 publication Critical patent/EP1607487A4/en
Application granted granted Critical
Publication of EP1607487B1 publication Critical patent/EP1607487B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1294—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a localised treatment
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/16—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0233—Manufacturing of magnetic circuits made from sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/02—Cores, Yokes, or armatures made from sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/067—Fibre lasers

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Electromagnetism (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Soft Magnetic Materials (AREA)
  • Laser Beam Processing (AREA)
EP04717811.6A 2003-03-19 2004-03-05 Manufacturing method of a grain-oriented magnetic steel sheet excellent in magnetic characteristics Expired - Lifetime EP1607487B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2003075930 2003-03-19
JP2003075930 2003-03-19
PCT/JP2004/002866 WO2004083465A1 (en) 2003-03-19 2004-03-05 Grain-oriented magnetic steel sheet excellent in magnetic characteristic and its manufacturing method

Publications (3)

Publication Number Publication Date
EP1607487A1 EP1607487A1 (en) 2005-12-21
EP1607487A4 true EP1607487A4 (en) 2006-11-15
EP1607487B1 EP1607487B1 (en) 2016-12-21

Family

ID=33027875

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04717811.6A Expired - Lifetime EP1607487B1 (en) 2003-03-19 2004-03-05 Manufacturing method of a grain-oriented magnetic steel sheet excellent in magnetic characteristics

Country Status (7)

Country Link
US (1) US7442260B2 (en)
EP (1) EP1607487B1 (en)
JP (1) JP4510757B2 (en)
KR (1) KR100676936B1 (en)
CN (1) CN100402673C (en)
RU (1) RU2301839C2 (en)
WO (1) WO2004083465A1 (en)

Families Citing this family (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4616623B2 (en) * 2004-11-18 2011-01-19 新日本製鐵株式会社 Method for producing grain-oriented electrical steel sheet
JP4705382B2 (en) * 2005-02-25 2011-06-22 新日本製鐵株式会社 Unidirectional electrical steel sheet and manufacturing method thereof
JP4846429B2 (en) * 2005-05-09 2011-12-28 新日本製鐵株式会社 Low iron loss grain-oriented electrical steel sheet and manufacturing method thereof
TWI305548B (en) * 2005-05-09 2009-01-21 Nippon Steel Corp Low core loss grain-oriented electrical steel sheet and method for producing the same
FR2887161B1 (en) * 2005-06-20 2007-09-07 Commissariat Energie Atomique METHOD AND DEVICE FOR LASER ABLATION OF A SURFACE LAYER OF A WALL, SUCH AS A PAINT COATING IN A NUCLEAR PLANT
JP5008855B2 (en) * 2005-10-26 2012-08-22 新日本製鐵株式会社 Method for producing unidirectional electrical steel sheet with excellent magnetic properties
KR20080066744A (en) * 2005-11-01 2008-07-16 신닛뽄세이테쯔 카부시키카이샤 Method and apparatus for manufacturing oriented electromagnetic steel sheet with excellent magnetic properties
FR2897007B1 (en) * 2006-02-03 2008-04-11 Air Liquide METHOD OF CUTTING WITH A FIBER LASER WITH BEAM PARAMETER CONTROL
JP5000182B2 (en) 2006-04-07 2012-08-15 新日本製鐵株式会社 Method for producing grain-oriented electrical steel sheet with excellent magnetic properties
US8497449B1 (en) * 2006-05-26 2013-07-30 Synchron Laser Service Inc. Micro-machining of ceramics using an ytterbium fiber-laser
JP5613972B2 (en) * 2006-10-23 2014-10-29 新日鐵住金株式会社 Unidirectional electrical steel sheet with excellent iron loss characteristics
RU2440426C1 (en) * 2007-12-12 2012-01-20 Ниппон Стил Корпорейшн Method for obtaining electromagnetic steel plate with orientation grains, magnetic domains of which are controlled by means of application of laser beam
WO2010116936A1 (en) * 2009-04-06 2010-10-14 新日本製鐵株式会社 Method for treating steel for directional electromagnetic steel plate and method for producing directional electromagnetic steel plate
RU2405841C1 (en) * 2009-08-03 2010-12-10 Открытое акционерное общество "Новолипецкий металлургический комбинат" Manufacturing method of plate anisotropic electric steel
KR101141283B1 (en) * 2009-12-04 2012-05-04 주식회사 포스코 Grain-oriented electrical steel sheet having low core loss and high magnetic flux density
CN102834529A (en) * 2010-04-01 2012-12-19 新日本制铁株式会社 Grain-oriented electrical steel sheet and manufacturing method thereof
US8790471B2 (en) 2010-07-28 2014-07-29 Nippon Steel & Sumitomo Metal Corporation Grain-oriented electrical steel sheet and manufacturing method thereof
BR112013002874B1 (en) * 2010-08-06 2022-05-24 Jfe Steel Corporation Grain-oriented electric steel sheet and method of manufacturing the same
JP5998424B2 (en) 2010-08-06 2016-09-28 Ｊｆｅスチール株式会社 Oriented electrical steel sheet
JP5158285B2 (en) * 2010-09-09 2013-03-06 新日鐵住金株式会社 Oriented electrical steel sheet
CN102477484B (en) 2010-11-26 2013-09-25 宝山钢铁股份有限公司 Quick laser scribing method
CN101979676B (en) * 2010-11-26 2012-02-08 武汉钢铁(集团)公司 Method for improving magnetic property of oriented silicon steel through laser scribing
DE102011000712A1 (en) 2011-02-14 2012-08-16 Thyssenkrupp Electrical Steel Gmbh Method for producing a grain-oriented flat steel product
WO2012110085A1 (en) * 2011-02-16 2012-08-23 Siemens Aktiengesellschaft Magnetic core formed from sheet metal laminates having varied grain orientation
JP5594437B2 (en) * 2011-09-28 2014-09-24 Ｊｆｅスチール株式会社 Oriented electrical steel sheet and manufacturing method thereof
KR101551782B1 (en) * 2011-12-22 2015-09-09 제이에프이 스틸 가부시키가이샤 Grain-oriented electrical steel sheet and method for producing same
CN107012309B (en) * 2011-12-27 2020-03-10 杰富意钢铁株式会社 Apparatus for improving iron loss of grain-oriented electromagnetic steel sheet
JP6010907B2 (en) * 2011-12-28 2016-10-19 Ｊｆｅスチール株式会社 Oriented electrical steel sheet and manufacturing method thereof
RU2578296C2 (en) * 2011-12-28 2016-03-27 ДжФЕ СТИЛ КОРПОРЕЙШН Textured electrical steel sheet and a method of reducing the iron loss
JP6157360B2 (en) * 2011-12-28 2017-07-05 Ｊｆｅスチール株式会社 Oriented electrical steel sheet and manufacturing method thereof
MX372893B (en) * 2012-10-30 2020-05-28 Jfe Steel Corp METHOD FOR MANUFACTURING A GRAIN-ORIENTED ELECTRICAL STEEL SHEET EXHIBITING LOW IRON LOSS.
US10535453B2 (en) * 2012-10-31 2020-01-14 Jfe Steel Corporation Grain-oriented electrical steel sheet and method for manufacturing the same
BR112015009485B1 (en) 2012-11-08 2020-01-14 Nippon Steel & Sumitomo Metal Corp laser processing apparatus and laser irradiation method
RU2514559C1 (en) * 2013-03-05 2014-04-27 Общество с ограниченной ответственностью "ВИЗ-Сталь" Production of anisotropic stalloy and finished stalloy
JP5668795B2 (en) * 2013-06-19 2015-02-12 Ｊｆｅスチール株式会社 Oriented electrical steel sheet and transformer core using the same
RU2529260C1 (en) * 2013-09-10 2014-09-27 Олег Иванович Квасенков Fruit sauce production method
EP3165614B1 (en) 2014-07-03 2023-05-10 Nippon Steel Corporation Use of a laser processing apparatus and method for manufacturing a grain- oriented electromagnetic steel sheet
CN106471140B (en) * 2014-07-03 2019-02-05 新日铁住金株式会社 Laser processing device
US20170298467A1 (en) 2014-10-06 2017-10-19 Jfe Steel Corporation Low iron loss grain oriented electrical steel sheet and method for manufacturing the same
JP6169695B2 (en) * 2014-10-23 2017-07-26 Ｊｆｅスチール株式会社 Oriented electrical steel sheet
KR101693516B1 (en) * 2014-12-24 2017-01-06 주식회사 포스코 Grain-orientied electrical steel sheet and method for manufacturing the smae
KR101719231B1 (en) 2014-12-24 2017-04-04 주식회사 포스코 Grain oriented electical steel sheet and method for manufacturing the same
EP3438293B1 (en) * 2016-03-31 2020-07-29 Nippon Steel Corporation Grain-oriented electrical steel sheet
KR101944899B1 (en) * 2016-12-22 2019-02-01 주식회사 포스코 Method for refining magnetic domains of grain oriented electrical steel sheet
CN110352255B (en) * 2017-02-28 2021-09-21 杰富意钢铁株式会社 Grain-oriented electromagnetic steel sheet and method for producing same
CN108660303B (en) 2017-03-27 2020-03-27 宝山钢铁股份有限公司 Stress-relief-annealing-resistant laser-scored oriented silicon steel and manufacturing method thereof
JP6597940B1 (en) * 2018-02-09 2019-10-30 日本製鉄株式会社 Oriented electrical steel sheet and manufacturing method thereof
BR112020018664B1 (en) * 2018-03-22 2024-04-30 Nippon Steel Corporation GRAIN ORIENTED ELECTRIC STEEL SHEET AND METHOD FOR PRODUCING GRAIN ORIENTED ELECTRIC STEEL SHEET
KR102091631B1 (en) 2018-08-28 2020-03-20 주식회사 포스코 Grain oriented electrical steel sheet and method for refining magnetic domains therein
PL3913088T3 (en) * 2019-01-16 2024-09-02 Nippon Steel Corporation Method for manufacturing grain-oriented electrical steel sheet
ES2984379T3 (en) * 2019-04-25 2024-10-29 Nippon Steel Corp Production process of winding iron core
WO2022013960A1 (en) * 2020-07-15 2022-01-20 日本製鉄株式会社 Grain-oriented electromagnetic steel sheet, and method for manufacturing grain-oriented electromagnetic steel sheet
CN117015627B (en) 2021-03-26 2026-04-28 日本制铁株式会社 Directional electromagnetic steel sheet and its manufacturing method
JP7678365B2 (en) 2021-03-26 2025-05-16 日本製鉄株式会社 Grain-oriented electrical steel sheet and its manufacturing method
JP7610157B2 (en) 2021-03-26 2025-01-08 日本製鉄株式会社 Grain-oriented electrical steel sheet and its manufacturing method
CN117222757A (en) * 2021-12-21 2023-12-12 浦项股份有限公司 Oriented electrical steel sheet and method for refining magnetic domains thereof
WO2024111638A1 (en) 2022-11-22 2024-05-30 日本製鉄株式会社 Grain-oriented electromagnetic steel sheet and production method therefor
EP4707420A1 (en) 2023-04-27 2026-03-11 Nippon Steel Corporation Grain-oriented electromagnetic steel sheet and magnetic domain control method
JPWO2024225454A1 (en) 2023-04-27 2024-10-31
JPWO2025005170A1 (en) 2023-06-29 2025-01-02
EP4570926A1 (en) 2023-12-13 2025-06-18 Thyssenkrupp Electrical Steel Gmbh Grain-oriented flat steel product and method for the production thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0870843A1 (en) * 1995-12-27 1998-10-14 Nippon Steel Corporation Magnetic steel sheet having excellent magnetic properties and method for manufacturing the same

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1070792A (en) * 1976-07-26 1980-01-29 Earl A. Cooper Electrical connector and frequency shielding means therefor and method of making same
US4456812A (en) * 1982-07-30 1984-06-26 Armco Inc. Laser treatment of electrical steel
US4645547A (en) * 1982-10-20 1987-02-24 Westinghouse Electric Corp. Loss ferromagnetic materials and methods of improvement
JPS59197520A (en) 1983-04-20 1984-11-09 Kawasaki Steel Corp Manufacture of single-oriented electromagnetic steel sheet having low iron loss
DE3539731C2 (en) * 1984-11-10 1994-08-04 Nippon Steel Corp Grain-oriented electrical steel sheet having stable stress-relieving magnetic properties and method and apparatus for making the same
JPH0619112B2 (en) * 1986-09-26 1994-03-16 新日本製鐵株式会社 Method for improving iron loss value of electrical steel sheet
SU1636459A1 (en) * 1988-08-15 1991-03-23 Институт физики металлов Уральского отделения АН СССР Process for production of anisotropic electric sheet steel
SU1744128A1 (en) * 1990-04-04 1992-06-30 Институт физики металлов Уральского отделения АН СССР Method of producing anisotropic electrical steel
JP3069968B2 (en) * 1991-03-28 2000-07-24 横浜ゴム株式会社 Hose manufacturing method and apparatus
JPH0619112A (en) 1992-07-03 1994-01-28 Oki Electric Ind Co Ltd Production of phase shift mask
RU2016094C1 (en) * 1992-09-02 1994-07-15 Новолипецкий металлургический комбинат им.Ю.В.Андропова Method of laser working of large-grain transformer anisotropic steel with thickness 0,15-0,30 mm
KR100259990B1 (en) * 1993-12-28 2000-06-15 에모또 간지 Uni-directional steel sheet with low iron loss and manufacturing method
JP3152554B2 (en) * 1994-02-04 2001-04-03 新日本製鐵株式会社 Electrical steel sheet with excellent magnetic properties
CN1083895C (en) * 1997-01-24 2002-05-01 新日本制铁株式会社 Grain-oriented electrical steel sheet with excellent magnetic properties and its production process and equipment
JP3361709B2 (en) 1997-01-24 2003-01-07 新日本製鐵株式会社 Manufacturing method of grain-oriented electrical steel sheet with excellent magnetic properties
CN1128892C (en) * 1998-08-07 2003-11-26 东北大学 Laser treatment method of orienting the surface of silicon steel
IT1306157B1 (en) * 1999-05-26 2001-05-30 Acciai Speciali Terni Spa PROCEDURE FOR THE IMPROVEMENT OF MAGNETIC CHARACTERISTICS OF SILICON STEEL GRAIN STEEL ORIENTED BY TREATMENT
JP4170522B2 (en) 1999-06-29 2008-10-22 浜松ホトニクス株式会社 Laser beam generator manufacturing method and optical amplifier manufacturing method
JP4091749B2 (en) * 2000-04-24 2008-05-28 新日本製鐵株式会社 Oriented electrical steel sheet with excellent magnetic properties
JP4398666B2 (en) * 2002-05-31 2010-01-13 新日本製鐵株式会社 Unidirectional electrical steel sheet with excellent magnetic properties and method for producing the same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0870843A1 (en) * 1995-12-27 1998-10-14 Nippon Steel Corporation Magnetic steel sheet having excellent magnetic properties and method for manufacturing the same

Also Published As

Publication number Publication date
KR20050115285A (en) 2005-12-07
JPWO2004083465A1 (en) 2006-06-22
US7442260B2 (en) 2008-10-28
RU2005132223A (en) 2006-02-27
EP1607487A1 (en) 2005-12-21
CN100402673C (en) 2008-07-16
KR100676936B1 (en) 2007-02-02
CN1761764A (en) 2006-04-19
WO2004083465A1 (en) 2004-09-30
EP1607487B1 (en) 2016-12-21
JP4510757B2 (en) 2010-07-28
RU2301839C2 (en) 2007-06-27
US20060169362A1 (en) 2006-08-03

Similar Documents

Publication Publication Date Title
EP1607487A4 (en) GRAIN-ORIENTED MAGNETIC STEEL STRIP WITH EXCELLENT MAGNETIC PROPERTIES, AND PROCESS FOR PRODUCING THE SAME
EP1632582A4 (en) NON-ORIENTED MAGNETIC STEEL SHEET EXCELLENT FROM THE POINT OF VIEW OF IRON LOSS, AND PROCESS FOR PRODUCING THE SAME
EP1493831A4 (en) PERLITE-BASED RAIL HAVING EXCELLENT WEAR RESISTANCE AND EXCELLENT DUCTILITY AND PROCESS FOR PRODUCING THE SAME
FR2812661B1 (en) HIGH-CLEAN STEEL AND PROCESS FOR PRODUCING THE SAME
EP1679386A4 (en) HIGH RESISTANCE MAGNETIC STEEL SHEET AND WORKPIECE MANUFACTURED FROM SUCH SHEET, AND PROCESS FOR PRODUCING THE SAME
EP1344439A4 (en) HIGH STRENGTH STEEL PLATE HAVING SUPERIOR ELECTRICAL AND MAGNETIC PROTECTION PROPERTIES AND METHOD FOR PRODUCING THE SAME
EP1650560A4 (en) BIOSENSOR AND METHOD FOR PRODUCING THE SAME
EP1642990A4 (en) HIGH STRENGTH STEEL PLATE WITH EXCELLENT FORMABILITY AND CORRESPONDING PRODUCTION PROCESS
EP1203748A4 (en) MICRODISPOSITIVE AND METHOD FOR PRODUCING THE SAME
EP1201780A4 (en) STEEL PLATE HAVING EXCELLENT TRIMMING ABILITY AND HIGH FATIGUE RESISTANCE, AND METHOD FOR PRODUCING THE SAME
ZA200600593B (en) Press-hardened component and associated production method
EP1422070A4 (en) AUTHENTICABLE PRINTED MATERIAL AND METHOD FOR PRODUCING THE SAME
EP1649513A4 (en) SEMI-INSULATING GAN AND PROCESS FOR PRODUCING THE SAME
EP1580289A4 (en) Non-oriented magnetic steel sheet and method for production thereof
AU2003266649A1 (en) Nano-crystal austenitic steel bulk material having ultra-hardness and toughness and excellent corrosion resistance, and method for production thereof
EP1688510A4 (en) THIN STEEL SHEET HAVING EXCELLENT SURFACE, MOLDING AND MACHINABILITY PROPERTIES AND PROCESS FOR PRODUCING THE SAME
EP1428831A4 (en) METHOD FOR PRESERVING HYDROGEN, HYDROGEN INCLUSION COMPOUND, AND PROCESS FOR PRODUCING THE SAME
EP1669470A4 (en) HOT ROLLED STEEL SHEET AND PROCESS FOR PRODUCING THE SAME
EP1683884A4 (en) MARTENSITIC STAINLESS STEEL CONDUIT AND PROCESS FOR PRODUCING THE SAME
EP1619232A4 (en) GAS PREPARATION AND METHOD FOR PRODUCING THE SAME
EP1367611A4 (en) INDUCTANCE PART AND METHOD FOR PRODUCING THE SAME
EP1945392A4 (en) STEEL PRODUCT WITH HIGH GRAIN GRANOCROISSANCE TEMPERATURE, AND PROCESS FOR PRODUCING THE SAME
IL193560A0 (en) Novel microorganism and method for producing dodecahydro-3a,6,6,9a-
EP1547974A4 (en) IRON SILICIDE POWDER AND PROCESS FOR PRODUCING THE SAME
EP1659595A4 (en) PROCESS FOR PRODUCING AND MODIFYING SUPERCONDUCTING OXIDE WIRE AND SUPERCONDUCTING OXIDE WIRE THUS OBTAINED

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20051018

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): DE FR IT

A4 Supplementary search report drawn up and despatched

Effective date: 20061013

17Q First examination report despatched

Effective date: 20120720

17Q First examination report despatched

Effective date: 20120912

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: NIPPON STEEL & SUMITOMO METAL CORPORATION

17Q First examination report despatched

Effective date: 20130410

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 602004050527

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: C21D0008120000

Ipc: H01F0001160000

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: H01F 3/02 20060101ALI20160623BHEP

Ipc: H01S 3/067 20060101ALI20160623BHEP

Ipc: H01F 1/16 20060101AFI20160623BHEP

Ipc: H01F 41/02 20060101ALI20160623BHEP

Ipc: C21D 8/12 20060101ALI20160623BHEP

INTG Intention to grant announced

Effective date: 20160706

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR IT

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602004050527

Country of ref document: DE

Owner name: NIPPON STEEL CORPORATION, JP

Free format text: FORMER OWNER: NIPPON STEEL CORP., TOKIO/TOKYO, JP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602004050527

Country of ref document: DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602004050527

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20170922

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602004050527

Country of ref document: DE

Representative=s name: VOSSIUS & PARTNER PATENTANWAELTE RECHTSANWAELT, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 602004050527

Country of ref document: DE

Owner name: NIPPON STEEL CORPORATION, JP

Free format text: FORMER OWNER: NIPPON STEEL & SUMITOMO METAL CORPORATION, TOKYO, JP

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230208

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230213

Year of fee payment: 20

Ref country code: DE

Payment date: 20230131

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 602004050527

Country of ref document: DE